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1. D
2. A
3. C
4. B
Hi
The answer is false
When powdery mildew attacks grape plants, the mildew mainly target the vines and leaves
D - RR or Rr
This is because red is a dominant trait, thus causing it to overpower a recessive trait or r, white. Therefore, if any genotype contains a capital R or the dominant trait of red, then the flower should ultimately display a phenotype of red.
Hope this helps!